JPS6341713Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a changeover switch, and more specifically, to a changeover switch that does not have a shaft for pivotally connecting a knob to an insulating case.

A knob or push button for separating a contact point and a contact piece, such as a toggle switch or a seesaw switch that has been put into practical use in the past, is pivotally attached to the switch housing with a shaft, and is configured to tilt around the shaft. ing. Therefore, it has drawbacks such as the difficulty of assembling the knobs and pushbuttons to the switch housing.

This invention aims to eliminate the above-mentioned conventional drawbacks, and its features include an arcuate surface, a flat surface, a knob protruding from the center of the arcuate surface, and an abbreviation of the flat surface. A knob structure is constituted by a projecting piece with a through hole protruding from the center and a pivoted part formed at the center of a flat surface at the base of this projecting piece, and the projecting piece of this knob structure engages. a through hole; a pivot portion that engages with the pivoted portion of the knob structure;
An insulating case comprising a fan-shaped support plate having a pair of sloped surfaces that come into contact with the flat surface of the knob structure and limit the rotation angle of the knob, and an arcuate surface that connects the ends of these sloped surfaces. A V-shaped conductive part is formed at approximately the center of the side wall of the insulating case adjacent to the arcuate surface of the insulating case, and insulating projecting walls and A conductor ball is inserted into the through hole of the protruding piece of the knob structure that is inserted into the through hole of the insulating case along the support plate, and a conductive ball is formed on one surface of the conductor ball. By bringing the wide portion of the fixed contact piece into elastic contact with the fixed contact piece, the V-shaped conductive portion and the conductive portion can be electrically connected to the fixed contact piece individually via the conductor ball, and The present invention provides a changeover switch characterized in that the V-shaped conductive portion and the conductive portion are each rendered non-conductive with respect to the fixed contact piece at a position facing the insulating projecting wall.
An embodiment of this invention shown in the drawings will be described in detail below.

FIG. 1 is a perspective view of the changeover switch of this invention, as an example, when it is integrated with a part of a vehicle interior light device 1. In the figure, 2 indicates an interior light section;
3 is a changeover switch.

FIG. 2 is an exploded perspective view of the vehicle interior light device, in which 4 is a knob component, 5 is a conductor bulb, 6 is an insulating case made of a material that does not hinder the transmission of light, and 7 is a conductor. This is a fixed contact piece made up of.

The knob structure 4 is formed of a cast resin member as shown in FIG. A projecting piece 45 with a protruding through hole 46 and a flat surface 44 at the base of this projecting piece 45
Knob structure 4 with a pivoted part 47 formed in the center of
, a through hole 671 into which the projecting piece 45 of the knob structure 4 engages, a pivot portion 672 that engages with the pivoted portion 47 of the knob structure 4, and a flat surface of the knob structure 4. a pair of inclined surfaces 673 that come into contact with the surface 44 and limit the rotation angle of the knob 43;
An insulating case 6 is constituted by a fan-shaped support plate 67 having an arcuate surface 674 connecting the ends of these inclined surfaces, and a side wall 62d of the insulating case 6 is adjacent to the arcuate surface 674 of the insulating case 6. A V-shaped conductive part 7a is formed approximately in the center, and an insulating projecting wall 681 and a conductive part 7b are formed on the side walls 62d on both sides of the V-shaped conductive part 7a, and along the support plate 67. Insulation case 6
The conductor ball 5 is inserted into the through hole 46 of the protruding piece 45 of the knob structure 4 which is inserted into the through hole 671 of the knob structure 4, and the wide part 743 of the fixed contact piece 7 is brought into elastic contact with one surface of the conductor ball 5. By this, the V is applied to the fixed contact piece 7.
The shaped conductive part 7a and the conductive part 7b are configured to be electrically connected to each other through the conductor ball 5, and the fixed contact piece 7 is connected to the conductor ball 5 and the insulating protruding wall 681 at a position facing each other. On the other hand, the V-shaped conductive portion 7a and the conductive portion 7b are configured to be non-conductive. The insulating case 6 has a deep dish shape with a rectangular bottom plate 61 and continuous side walls 62a to 62d standing upright around it, and the side walls 62a and 62c have multiple mounting screw holes for attaching the insulating case 6 inside the vehicle. Bosses 64a to 64c are provided with bosses 64a to 64c opening 63, and a prism 65 is provided on the surface of the indoor light component portion of the bottom plate 61, as shown in FIG. Fixed contact piece mounting protrusions 66 to which one of the fixed contact pieces 7 is attached are respectively formed. In addition, a through hole 671 into which the protruding piece 45 of the above-mentioned knob constituent body 4 and a part of the movable member 41 can be inserted is formed in the switch constituent part, and the inner surface of the side wall 62d and the fixed contact piece mounting protrusion 6
The knob 4 is engaged with a pivoted portion 47 formed at the center of the flat surface 44 of the movable member 41 on the long side of the through hole 671 between the knob 4 and one surface of the knob 4.
The pivot point 672 which is the fulcrum of 3 and this pivot point 672
an inclined surface 673 about which the flat surface 44 of the movable member 41 comes into contact and limits the tilting angle of the knob structure 4;
and an arcuate surface 6 with which the conductor ball 5 attached to the through hole 46 of the protruding piece 45 is in contact, which is longer than the length of the inclined surface 673.
Fan-shaped support plates 67, 67 having 74 are provided so as to face each other, and the conductor 71
As shown in FIG. 3, the lamp socket 711 has a substantially C-shape that rests on approximately half of the lamp, the side wall 62b, and the boss 64b. The conductor 72 is connected to approximately half of each of the side walls 62c and 62d and the boss 64c.
The conductor 73 has a substantially L-shape that rests on it, and a conductive portion 7b bent inward at one end is formed, and the conductor 73 has a substantially L-shape that rests on approximately half of each of the side walls 62a and 62d and the boss 64a, and has one end. A V-shaped conductive portion 7b is formed which is bent inward. The conductor 74 constituting the fixed contact piece 7 has a substantially T-shape and has a fixed contact piece mounting protrusion 66.
Two mounting holes 75, 75 are drilled in the center so that it can be screwed into the screw hole 68 of The insulating projecting wall 681 and V are bent and rest on the support plate 67.
A wide portion 743 corresponding to the conductive portion 7a and the conductive portion 7b is formed.

The vehicle interior light device 1 of this invention consists of the above-mentioned components, and the conductors 71 to 73 are attached to the side walls 62a to 62d with adhesive as shown in FIGS. 2 and 3, and the conductor 74 is attached to a fixed connection. Lamp sockets 711 and 742 are fixed with screws 69 on one mounting protrusion 66.
As shown in FIG. 3, a lamp 8 is installed in between, and the protruding piece 45 of the knob structure 4 with the conductor ball 5 inserted into the through hole 46 and a part of the movable member 41 are inserted into the through hole 671. When the knob structure 4 is in the upright state, the conductor ball 5 is held between the V-shaped conductive part 7a and the wide part 743, as shown in FIGS. 4 and 5, so that the positioning member of the knob structure 4 and the knob The movable contact that comes into contact with the wide part 743 and the conductor ball 5
The conductor ball can be used for both the insulating projecting wall 681, the V-shaped conductive part 7a, the (flat) conductive part 7b and the wide part 743.
It is always held between the two and does not fall off.

Next, the operation of the changeover switch 3 will be explained with reference to FIGS. 3 to 6 a to c.

The first state is the third state in which the knob 43 is in the upright state.
The solid line state in Figures 4 and 5 and Figure 6a
, a power supply E (not shown) is connected to the conductor 71 - lamp 8 - conductor 74 - conductor bulb 5 - conductor 73.
A loop for 1 is formed and lamp 8 is lit.

In the second state, when the knob 43 is tilted forward from the upright state shown in FIG. 1, the conductor 71-lamp-
The path of the conductor 74--conductor ball 5 conductor 72 forms a loop for the power source E2 (not shown), which connects the lamp 8.
The illumination intensity is reduced by, for example, 50% compared to the case where the loop is connected to the power source E1.

In the third state, if the knob 43 is tilted to the opposite side from the upright state shown in FIG. Since the lamp 8 is in contact with the wide portion 743, neither of the loops connected to the power sources E1 and E2 is formed, and the lamp 8 is turned off.

The operation of the changeover switch described above is the same in the other embodiments shown in FIGS. 7 and 8.

In addition, as shown in FIG. 9, the pivoted part 47 and the pivoted part 672 may be reversely provided.

As described above, this invention has an arcuate surface 42, a flat surface 44, a knob 43 protruding from the center of the arcuate surface 42, and a projecting piece with a through hole 46 protruding from approximately the center of the flat surface 44. 45 and a pivoted portion formed at the center of the flat surface 44 at the base of the protrusion 45 constitute a knob structure 4, and a through hole 671 into which the protrusion 45 of the knob structure 4 engages; a pivot portion 672 that engages with the pivoted portion 47 of the knob structure 4;
, a pair of sloped surfaces 673 that come into contact with the flat surface 44 of the knob structure 4 to limit the rotation angle of the knob 43, and an arcuate surface 674 that connects the ends of these sloped surfaces. A fan-shaped support plate 67 constitutes an insulating case 6, and a V-shaped conductive portion 7a is formed approximately at the center of the side wall 62d of the insulating case 6 adjacent to the arcuate surface 674 of the insulating case 6. An insulating projecting wall 681 and a conductive part 7b are formed on the side walls 62d on both sides of the conductive part 7a, and the knob is inserted into the through hole 671 of the insulating case 6 along the support plate 67. By inserting the conductor ball 5 into the through hole 46 of the projecting piece 45 of the body 4 and bringing the wide part 743 of the fixed contact piece 7 into elastic contact with one surface of the conductor ball 5, the fixed contact piece 7
In contrast, the V-shaped conductive portion 7a and the conductive portion 7b are configured to be electrically connected to each other through the conductor ball 5, and the conductor ball 5 and the insulating projecting wall 681 are fixed at opposing positions. Since the V-shaped conductive portion 7a and the conductive portion 7b are configured to be non-conductive with respect to the contact piece 7, the switch can be operated as a changeover switch via the conductor ball by operating the knob. , the installation of the knob component to the insulating case is extremely easy compared to the case where it is installed using a pivot, and the conductor ball is attached to three parts: the knob positioning member, the knob retaining member, and the movable contact contact. Since it is used for both purposes, it is possible to provide a changeover switch that is easy to assemble and is inexpensive, compared to a case where a movable contact is attached to a protrusion of a knob component or a separately provided movable contact is moved by this protrusion.

[Brief explanation of drawings]

The figures all show one embodiment of this invention. Fig. 1 is an external view of this invention when it is applied to a vehicle interior lighting device, Fig. 2 is an exploded perspective view of a part of it, and Fig. 3 is an exploded perspective view of a portion of the invention. The figure is a cross-sectional view with the lamp installed.
Fig. 4 is a plan view, Fig. 5 is an enlarged plan view of the changeover switch, Figs. 6a to 6c are explanatory diagrams of the operation of the changeover switch, and Figs. It is a figure which shows another Example of a structure. 4... Knob structure, 5... Conductor ball, 6... Insulating case, 7... Fixed contact piece, 7a... V-shaped conductive part,
7b... Conductive part, 42... Arc surface, 43... Knob, 44... Flat surface, 45... Protruding piece, 46, 67
1... Through hole, 47... Pivoted part, 62a-62d
... Side wall, 672 ... Pivotal portion, 673 ... Inclined surface, 674 ... Arc-shaped surface, 681 ... Insulating projecting wall, 7
43...Wide part.

Claims (1)

[Scope of utility model registration request] A circular arc surface 42, a flat surface 44, and the circular arc surface 42
a knob 43 protruding from the center of the flat surface 44; a protrusion 45 with a through hole 46 protruding from approximately the center of the flat surface 44; and a pivoted support 47 formed at the center of the flat surface 44 at the base of the protrusion 45. constitutes a knob structure 4, and
The through hole 671 into which the protruding piece 45 of the knob structure 4 engages, and the pivoted portion 47 of the knob structure 4
a pivot portion 672 that engages with the knob structure 4; a pair of sloped surfaces 673 that come into contact with the flat surface 44 of the knob structure 4 to limit the rotation angle of the knob 43; A fan-shaped support plate 67 having a connecting arc surface 674 is formed in the insulating case 6, and a side wall 62d at the center of the through hole 671 of the insulating case 6 is provided adjacent to the arc surface 674 of the insulating case 6. In addition to forming the V-shaped conductive portion 7a, an insulating projecting wall 681 and a conductive portion 7b are formed on the side walls 62d on both sides of the V-shaped conductive portion 7a, and the pivot portion 672
The through hole 46 of the protruding piece 45 is engaged with the pivoted portion 47 of the knob structure 4 and inserted into the through hole 671.
The conductor ball 5 is always brought into contact with the lower surface of the circular arc surface 674, and the wide part 743 of the elastic fixed contact piece 7 is pressed against one surface of the conductor ball 5, so that the conductor ball 5 is inserted into the side wall 62d. By applying pressure in the direction, the V-shaped conductive portion 7a and the conductive portion 7b formed opposite to the fixed contact piece 7 can be individually electrically connected to the fixed contact piece 7 via the conductor ball 5. and the conductor ball 5 and the insulating projecting wall 681
A changeover switch characterized in that the V-shaped conductive part 7a and the conductive part 7b are each made non-conductive with respect to the fixed contact piece 7 at a position opposite to the fixed contact piece 7.